在Python3中遇到错误(异常、循环)
所以我在这里要做的是,如果你输入一个字符串而不是一个整数,你就回到起点 但是由于某种原因,当你输入一个字符串时,程序就停止了在Python3中遇到错误(异常、循环),python,exception,loops,while-loop,Python,Exception,Loops,While Loop,所以我在这里要做的是,如果你输入一个字符串而不是一个整数,你就回到起点 但是由于某种原因,当你输入一个字符串时,程序就停止了 while True: try: print("Will select a random number between selected limits: 'x' and 'y'") x = int(input("x = ")) except ValueError: print("Please enter a
while True:
try:
print("Will select a random number between selected limits: 'x' and 'y'")
x = int(input("x = "))
except ValueError:
print("Please enter a number")
break
甚至更短,一行;):
将
中断
放在其他:
块中,而不是放在尝试:
块的末尾,有什么意义呢?@chen这只是个人风格的问题,我认为这样做感觉更有条理我的程序实际上完成了,我只是稍微润色了一下。我已经完成了y=int(input())的所有操作,但您只是为我简化了10-20行,现在一切都正常了,谢谢!
while True:
try:
print("Will select a random number between selected limits: 'x' and 'y'")
x = int(input("x = "))
y = int(input("y = "))
except ValueError:
print("Please enter a number") # don't break here, let loop repeat
else:
break # only break when there is no error
while True:
try:
print("Will select a random number between selected limits: 'x' and 'y'")
x = int(input("x = "))
y = int(input("y = "))
break # only break when there is no error
except ValueError:
print("Please enter a number") # don't break here, let loop repeat